3643274447 has 2 divisors, whose sum is σ = 3643274448. Its totient is φ = 3643274446.

The previous prime is 3643274423. The next prime is 3643274549. The reversal of 3643274447 is 7444723463.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3643274447 - 2¹⁶ = 3643208911 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3643274398 and 3643274407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3643274417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1821637223 + 1821637224.

It is an arithmetic number, because the mean of its divisors is an integer number (1821637224).

Almost surely, 2^3643274447 is an apocalyptic number.

3643274447 is a deficient number, since it is larger than the sum of its proper divisors (1).

3643274447 is an equidigital number, since it uses as much as digits as its factorization.

3643274447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1354752, while the sum is 44.

The square root of 3643274447 is about 60359.5431311404. The cubic root of 3643274447 is about 1538.7354614853.

The spelling of 3643274447 in words is "three billion, six hundred forty-three million, two hundred seventy-four thousand, four hundred forty-seven".